This is my favorite arboretum in the Philadelphia area. Yes, the trees are beautiful, and the walks are great. But the treehouses (interesting to young and old) are so much fun, they make the park unique, so glad they kept them up after the initial exhibition. You don't have to climb to enjoy them, and if memory serves me, you can walk (or roll?) into at least one. The woodland walk with the fairy houses is a new favorite, and the lilac bushes and hammocks are a special corner of the world. Critters abound in the pond, and I believe that the pond observation deck is wheelchair friendly also, as are several paths. I've never been there at the right time for the butterfly house, but hear it's also a must see. Their pumpkin festival is one of the best for young children. Call to see when the azeleas or rhododendron are in bloom. Longwood Gardens has gotten too expensive for me, I go to Tyler, so much more LAID BACK but lots to see and do. My favorite place to go for Mother's Day.